Abstract: A variable displacement vane pump has a ported casing (10), a rotor (28) and a first (32a) and second (32b) plurality of vanes. The ported casing (10) has a pair of relatively rotatable, complementary cams (18, 20). Each cam has a surface shaped to provide a curvilinear annular track (18a, 20a). The rotor (28) is rotatably mounted in the casing (10). The vanes (32a, 32b) are slidably mounted upon the rotor (28). Each of the vanes (32a, 32b) are sized and positioned to engage a corresponding one of the pair of cams (18, 20). The vanes of the first plurality (32a) of vanes engage one of the cams (18), the other cam (20) being engaged by the vanes of the second pluarlity (32b). Thus constructed, the vanes (32a, 32b) can move in pairs in a closed path within the casing (10). The vanes (32 a, 32b) of each pair can ride on different ones of the cams (18, 20). By rotating the cams (18, 20) with respect to each other, the phasing of the vanes (32a, 32b) in each pair can be altered.

Abstract: A fastener for securing a starter jaw coupling member to the accessory shaft of an internal combustion engine is disclosed. The fastener, attached to the starter jaw coupling member is inserted into an internally splined bore formed in the end of the accessory shaft. A pair of pivotally connected arms are rotated in opposite direction with a forward arcuate motion by advancing a bolt passing axially through the starter jaw coupling member. The rotated arms engage the rear ends of the accessory shaft's internal splines locking the starter jaw coupling member securely to the end of the accessory shaft.

Abstract: Apparatus is disclosed wherein a starter provides power for starting an engine and the starter gearing and an overrunning clutch are arranged so that the engine drives an accessory coupled to the starter by using particular elements of the starter gearing while other elements of the gearing come to rest, thereby eliminating separate drive means between the starter and accessory.

Abstract: Apparatus for limiting excessive torque imposed by a driving member on a driven member under impact torque conditions. The apparatus includes clutch means arranged to be loosely set for permitting slippage to reduce the torque upon the instant of impact and to be automatically tightened to carry normal torque thereafter.